'''Theta Delta Chi''' ('''ΘΔΧ, Theta Delt''') is a social Fraternities and sororities|fraternity
that was founded in 1847 at Union College
, New York, United States. While nickname
s differ from institution to institution, the most common nicknames for the fraternity are '''Theta Delt, Thete, TDX, and TDC.''' Theta Delta Chi brothers refer to their local organization as '''Charges''' rather than using the common fraternity nomenclature of '''chapter'''.